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首页> 外文期刊>Journal of mass spectrometry: JMS >Improved detection sensitivity of elements in solids via laser postionization in laser desorption time‐of‐flight mass spectrometry
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Improved detection sensitivity of elements in solids via laser postionization in laser desorption time‐of‐flight mass spectrometry

机译：通过激光解吸飞行时间质谱法中激光解除型通过激光解除型固体元件的检测灵敏度

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Abstract > A newly constructed laser desorption (532?nm, 5?ns) and laser postionization (266?nm, 5?ns) time‐of‐flight mass spectrometer (LD‐LPI‐TOFMS) has been applied for improving the detection sensitivity of elements in solid samples. This method affords to acquire the information of the elemental impurities in solid standards as well as limit of detection (LOD) down to 10 ?8 ?g/g for some elements. Neutral atoms of solids are generated by low‐irradiance laser desorption ( 10 8 ?W/cm 2 ), followed by high‐irradiance laser postionization (~ 10 9 ?W/cm 2 ) of the desorbed atoms, facilitating to decouple the desorption and ionization processes in spatial and temporal domain. This non‐interacting feature overcomes the discrimination between deteriorating spectral resolution at high irradiance (10 9 –10 11 ?W/cm 2 ) and limited detectable elemental species and high LOD at low or medium irradiance (below 10 9 ?W/cm 2 ). The utilization of originally “wasted” neutral atoms by laser postionization will help improve atom utilization and instrumental sensitivity. In this work, getting the utmost out of the consumed neutral atoms instead of an increment in sampling amounts is given attention with high priority for achieving high sensitivity and low LOD, which is especially useful on the occasions where very low sample consumption is desired. </abstract> </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> <div class="translation abstracttxt"> <span class="zhankaihshouqi fivelineshidden" id="abstract"> <span>机译：</span><abstract xmlns =“http://www.wiley.com/namespaces/wiley”type =“main”xml：lang =“en”> <标题类型=“main”>抽象</ title> >新构造的激光解吸（532〜Nm，5？ns）和激光下降（266〜nm，5≤ns）飞行时间质谱仪（Ld-lpi-tofms）已应用于改善固体中元素的检测灵敏度样品。该方法提供了固体标准中的元素杂质的信息以及一些元素的检测限度（LOD）下限（LOD）。固体的中性原子由低辐照灯激光解吸产生（＆ 10 8-sup> w / cm 2 </ sup>），然后是高辐照度激光切片（〜10 <sup解吸原子的9 </ sup>αw/ cm 2 </ sup>），促进在空间和颞域域中脱索和电离过程。该非交互特征克服了在高辐照度下劣化的光谱分辨率之间的辨别（10 9 </ sup> -10 11 </ sup>Δw/ cm 2 </ sup>）和有限低或中等辐照度（低于10 9）的可检测元素物种和高床位。通过激光切片利用最初“浪费”中性原子将有助于提高原子利用和仪器敏感性。在这项工作中，通过高优先级来实现高灵敏度和低床的优先级，以获得高灵敏度和低床的高优先级来获得消耗的中性原子，而不是采样量的增量。 </ p> </ abstract> </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> </div> <div class="record"> <h2 class="all_title" id="enpatent33" >著录项</h2> <ul> <li> <span class="lefttit">来源</span> <div style="width: 86%;vertical-align: text-top;display: inline-block;"> <a href='/journal-foreign-34906/'>《Journal of mass spectrometry: JMS》</a> <b style="margin: 0 2px;">|</b><span>2018年第5期</span><b style="margin: 0 2px;">|</b><span>共9页</span> </div> </li> <li> <div class="author"> <span class="lefttit">作者</span> <p id="fAuthorthree" class="threelineshidden zhankaihshouqi"> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Yin Zhibin&option=202" target="_blank" rel="nofollow">Yin Zhibin;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Hang Le&option=202" target="_blank" rel="nofollow">Hang Le;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Liu Rong&option=202" target="_blank" rel="nofollow">Liu Rong;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Hang Wei&option=202" target="_blank" rel="nofollow">Hang Wei;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Huang Benli&option=202" target="_blank" rel="nofollow">Huang Benli;</a> </p> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zkzz" style="display: none;">展开▼</span> </div> </li> <li> <div style="display: flex;"> <span class="lefttit">作者单位</span> <div style="position: relative;margin-left: 3px;max-width: 639px;"> <div class="threelineshidden zhankaihshouqi" id="fOrgthree"> <p>Department of Chemistry and the MOE Key Lab of Spectrochemical Analysis and Instrumentation College of Chemistry and Chemical EngineeringXiamen UniversityXiamen Fujian 361005 China;</p> <p>Department of Chemistry and the MOE Key Lab of Spectrochemical Analysis and Instrumentation College of Chemistry and Chemical EngineeringXiamen UniversityXiamen Fujian 361005 China;</p> <p>Department of Chemistry and the MOE Key Lab of Spectrochemical Analysis and Instrumentation College of Chemistry and Chemical EngineeringXiamen UniversityXiamen Fujian 361005 China;</p> <p>Department of Chemistry and the MOE Key Lab of Spectrochemical Analysis and Instrumentation College of Chemistry and Chemical EngineeringXiamen UniversityXiamen Fujian 361005 China;</p> <p>Department of Chemistry and the MOE Key Lab of Spectrochemical Analysis and Instrumentation College of Chemistry and Chemical EngineeringXiamen UniversityXiamen Fujian 361005 China;</p> </div> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zhdw" style="display: none;">展开▼</span> </div> </div> </li> <li > <span class="lefttit">收录信息</span> <span style="width: 86%;vertical-align: text-top;display: inline-block;"></span> </li> <li> <span class="lefttit">原文格式</span> <span>PDF</span> </li> <li> <span class="lefttit">正文语种</span> <span>eng</span> </li> <li> <span class="lefttit">中图分类</span> <span><a href="https://www.zhangqiaokeyan.com/clc/1187.html" title="分析化学">分析化学;</a></span> </li> <li class="antistop"> <span class="lefttit">关键词</span> <p style="width: 86%;vertical-align: text-top;"> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=atom utilization&option=203" rel="nofollow">atom utilization;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=laser desorption laser postionization (LD‐LPI)&option=203" rel="nofollow">laser desorption laser postionization (LD‐LPI);</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=limit of detection&option=203" rel="nofollow">limit of detection;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=solid analysis&option=203" rel="nofollow">solid analysis;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=time‐of‐flight mass spectrometer (TOFMS)&option=203" rel="nofollow">time‐of‐flight mass spectrometer (TOFMS);</a> </p> <div class="translation"> 机译：原子利用率;激光解吸激光切片（LD-LPI）;检测限;固体分析;飞行时间质谱仪（TOFMS）; </div> </li> </ul> </div> </div> <div class="literature cardcommon"> <div class="similarity "> <h3 class="all_title" id="enpatent66">相似文献</h3> <div class="similaritytab clearfix"> <ul> <li class="active" >外文文献</li> <li >中文文献</li> <li >专利</li> </ul> </div> <div class="similarity_details"> <ul > <li> <div> <b>1. </b><a class="enjiyixqcontent" href="/journal-foreign-detail/0704025633317.html">Improved detection sensitivity of elements in solids via laser postionization in laser desorption time‐of‐flight mass spectrometry</a> <b>[J]</b> . <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Yin Zhibin&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Yin Zhibin,</a> <a 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matrix-assisted laser desorption/ionization time-of-flight plate, a graphene layer, and a metal layer or silicon layer</a> <b>[P]</b> . <span> 外国专利： <!-- 德国专利： --> DE102010020933A1 </span> <span> . 2011-09-15</span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译：用于样品分析的基质辅助激光解吸/电离飞行时间质谱目标物，包括基质辅助激光解吸/电离飞行时间板，石墨烯层和金属层或硅层 </span> </p> </li> <li> <div> <b>4. </b><a class="enjiyixqcontent" href="/patent-detail/06130441898671.html">CHIP FOR MASS SPECTROMETRY, AND LASER DESORPTION IONIZATION-TIME OF FLIGHT MASS SPECTROMETER AND MASS SPECTROMETRY SYSTEM USING SAME</a> <b>[P]</b> . <span> 外国专利： <!-- 世界知识产权组织专利： --> WO2004051253A1 </span> <span> . 2004-06-17</span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译：质谱联用芯片，飞行质谱仪和质谱联用系统中的激光解吸电离时间 </span> </p> </li> <li> <div> <b>5. </b><a class="enjiyixqcontent" href="/patent-detail/06130431693149.html">Mass spectrometry i.e. matrix assisted laser desorption ionization-time of flight mass spectrometry, microscopy device for analyzing biological sample i.e. cell, has stack of piezoelectric units controlled for scanning sample</a> <b>[P]</b> . <span> 外国专利： <!-- 德国专利： --> DE102006052037A1 </span> <span> . 2008-04-30</span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译：质谱法，即基质辅助激光解吸电离飞行时间质谱法，用于分析生物样品即细胞的显微镜设备，具有控制扫描样品的压电单元堆栈 </span> </p> </li> </ul> </div> </div> </div> <div class="theme cardcommon" style="overflow: auto;display:none"> <h3 class="all_title" id="enpatent55">相关主题</h3> <ul id="subject"> </ul> </div> </div> </div> </div> <div class="right rightcon"> <div class="details_img cardcommon clearfix" style="margin-bottom: 10px;display:none;" > </div> 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